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Create a Replica AD LDS Instance

Updated: August 8, 2008

Applies To: Windows Server 2008

To provide fault tolerance and load balancing, Active Directory Lightweight Directory Services (AD LDS) instances can be part of a configuration set. All AD LDS instances in a configuration set replicate a common configuration directory partition and a common schema directory partition, plus any number of application directory partitions.

You can use this procedure to create an AD LDS instance and join it to an existing configuration set. Use the Active Directory Lightweight Directory Services Setup Wizard to create a replica AD LDS instance. You have to know the Domain Name System (DNS) name of the server that is running an AD LDS instance that belongs to the configuration set, as well as the Lightweight Directory Access Protocol (LDAP) port that was specified when the instance was created. You can also supply the distinguished names (also known as DNs) of specific application directory partitions that you want to copy from the configuration set to the AD LDS instance that you are creating.

Membership in the Administrators group, or equivalent, is the minimum required to complete this procedure. Review details about using the appropriate accounts and group memberships at Local and Domain Default Groups (http://go.microsoft.com/fwlink/?LinkId=83477).

  1. Click Start, point to Administrative Tools, and then click Active Directory Lightweight Directory Services Setup Wizard.

  2. On the Welcome to the Active Directory Lightweight Directory Services Setup Wizard page, click Next.

  3. On the Setup Options page, click A replica of an existing instance, and then click Next.

  4. On the Instance Name page, provide a name for the replica AD LDS instance that you are installing, and then click Next.

    noteNote
    AD LDS instance names must be unique only on a given computer.

  5. On the Ports page, specify the LDAP and Secure Sockets Layer (SSL) port numbers, and then click Next.

  6. On the Joining a Configuration Set page, in Server, type the host name or DNS name of the computer where the first AD LDS instance is installed. Then, type the LDAP port number in use by the first AD LDS instance (which is 389 by default), and then click Next.

    noteNote
    You must use a valid host name or DNS name, rather than an IP address or localhost when you specify a server on the Joining a Configuration Set page of the Active Directory Lightweight Directory Services Set Wizard.

  7. On the Administrative Credentials for the Configuration Set page, click the account that is used as the AD LDS administrator for your first AD LDS instance.

  8. On the Copy Application Partition page, select the application directory partitions that you want to replicate to the new AD LDS instance, (the schema and configuration partitions will be replicated automatically), and then click Next.

  9. Finish creating the replica AD LDS instance by following the wizard instructions.

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